{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T05:31:12Z","timestamp":1789623072201,"version":"build-2803163510"},"reference-count":22,"publisher":"International Union of Crystallography (IUCr)","issue":"7","license":[{"start":{"date-parts":[[2016,6,3]],"date-time":"2016-06-03T00:00:00Z","timestamp":1464912000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/journals.iucr.org\/services\/copyrightpolicy.html"},{"start":{"date-parts":[[2016,6,3]],"date-time":"2016-06-03T00:00:00Z","timestamp":1464912000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/journals.iucr.org\/services\/copyrightpolicy.html#TDM"}],"content-domain":{"domain":["iucr.org","wiley.com","iucrj.org"],"crossmark-restriction":true},"short-container-title":["Acta Crystallogr C Struct Chem","Acta Crystallogr C","Acta Crystallogr C Cryst Struct Commun","Acta Cryst C","Acta Cryst C Struct Chem","Acta Cryst Sect C","Acta Cryst Sect C Struct Chem","Acta Crystallogr Sect C","Acta Crystallogr Sect C Struct Chem","Acta Crystallogr Sect C Cryst Struct Commun"],"published-print":{"date-parts":[[2016,7,1]]},"abstract":"<jats:p>In the coordination chemistry of palladium, dimers bridged<jats:italic>via<\/jats:italic>halides are a common motif. Higher oligomers, however, are still rare. We report the structure of an alternating eight-membered [Pd<jats:sub>4<\/jats:sub>Br<jats:sub>4<\/jats:sub>]<jats:sup>4\u2212<\/jats:sup>ring framed by cycloheptatrienide ligands, which was obtained by cocrystallization of dimers and tetramers of the complex salt bromido{\u03b7<jats:sup>3<\/jats:sup>-[3-(2,6-diisopropylphenyl)imidazolium-1-yl]cycloheptatrienido}palladium(II) tetrafluoroborate, namely bis[di-\u03bc-bromido-bis({\u03b7<jats:sup>3<\/jats:sup>-[3-(2,6-diisopropylphenyl)imidazolium-1-yl]cycloheptatrienido}palladium(II))]<jats:italic>cyclo<\/jats:italic>-tetra-\u03bc-bromido-tetrakis({\u03b7<jats:sup>3<\/jats:sup>-[3-(2,6-diisopropylphenyl)imidazolium-1-yl]cycloheptatrienido}palladium(II)) octakis(tetrafluoroborate) dichloromethane octasolvate, [Pd<jats:sub>4<\/jats:sub>Br<jats:sub>4<\/jats:sub>(C<jats:sub>22<\/jats:sub>H<jats:sub>26<\/jats:sub>N<jats:sub>2<\/jats:sub>)<jats:sub>4<\/jats:sub>][Pd<jats:sub>2<\/jats:sub>Br<jats:sub>2<\/jats:sub>(C<jats:sub>22<\/jats:sub>H<jats:sub>26<\/jats:sub>N<jats:sub>2<\/jats:sub>)<jats:sub>2<\/jats:sub>]<jats:sub>2<\/jats:sub>(BF<jats:sub>4<\/jats:sub>)<jats:sub>8<\/jats:sub>\u00b78CH<jats:sub>2<\/jats:sub>Cl<jats:sub>2<\/jats:sub>. These dimers and tetramers form a highly dynamic equilibrium in solution which was studied by low-temperature NMR spectroscopy. In the light of the presented results, tetrameric Pd<jats:sup>II<\/jats:sup>species can be assumed to co-exist as a second species in many cases where by current knowledge only a dimeric compound would be expected.<\/jats:p>","DOI":"10.1107\/s2053229616008275","type":"journal-article","created":{"date-parts":[[2016,6,7]],"date-time":"2016-06-07T17:57:29Z","timestamp":1465322249000},"page":"509-513","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":5,"title":["A Pd<sub>4<\/sub>Br<sub>4<\/sub>macrocycle trapped by cocrystallization from a highly dynamic equilibrium of \u03b7<sup>3<\/sup>-cycloheptatrienide complexes"],"prefix":"10.1107","volume":"72","author":[{"given":"C.","family":"Jandl","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S.","family":"Stegbauer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A.","family":"P\u00f6thig","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"329","published-online":{"date-parts":[[2016,6,3]]},"reference":[{"key":"fp3030_bb1","doi-asserted-by":"crossref","first-page":"335","DOI":"10.1107\/S0021889804003528","volume":"37","author":"Allen","year":"2004","journal-title":"J. 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